Yeah, I just performed the install last night and I intend to do the Windows refresh later on today to simulate the clean install I'm after. I also backed up my entire hard drive (Including the OS in case Windows 10 fucked anything up, which it hasn't so far) so I can just selectively restore/archive files on my external hard drive. I decided to upgrade from 8.1 for the fact that 10 is everything 8 wasn't. If I were running 7, I'd probably stay there and see what comes of 10.
I really do wish they'd clear up the whole activation thing though, it's such a mess as it is right now.